I would like to test the suitability of the material, but the neck was too small. The material feels comfortable but is thin. Nice buttons. I bought the larger ones and although they fit, the top button would not fasten. The collar is approximately 17 inches from end to end, but due to the buttoning overlap, I measured 15.5 inches on the inside when buttoned. I'm not sure where 1.5 inches disappears. They lose outside dimensions closer to 1 inch. I have a 16.5" neck and couldn't get it to work.